For PrePay accounts, you can purchase credits in bulk and distribute them between your sub-accounts. For Invoice accounts, the cost per message is automatically inherited from your master account, allowing you to bill a client, project or department, adding on your own margin if you wish.
This is an ideal option for clients wishing to re-sell SMS services without the need for expensive infrastructure.
If you already have an account and would like to setup a new sub-account, please see here http://world-text.com/account/subaccounts/ Otherwise please sign-up for your free main accounts here which includes 30 free credits! http://world-text.com/register/
Please contact us if you have any questions.